Upon a newborn's first breath, pulmonary arterioles

A. constrict.
B. dilate.


B

Anatomy & Physiology

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As an axon approaches the cell onto which it will terminate, it generally branches repeatedly into several

A.  teloaxons. B.  dendrites. C.  collateral axons. D.  telodendria. E.  neurolemmocytes.

Anatomy & Physiology

What do lutein cells develop from?

A. The corpus luteum B. The granulosa cells C. The corona radiata D. The corpus albicans E. The theca interna

Anatomy & Physiology

The middle primary germ layer is called ________, which gives rise to a gelatinous material called ________, which then gives rise to different types of connective tissue such as bone, cartilage, and blood.

A. ectoderm; mesenchyme B. ectoderm; stem cells C. mesoderm; mesenchyme D. mesoderm; fibroblasts E. endoderm; mesenchyme

Anatomy & Physiology

Enterokinase

A. is a hormone. B. triggers the release of bile from the gallbladder. C. activates trypsinogen. D. increases duodenal motility. E. digests proteins.

Anatomy & Physiology